What is auto-scaling and how does it contribute to cost optimization?

What is auto-scaling and how does it contribute to cost optimization?

• A. Automatically reduces all cloud usage by a fixed percentage.
• B. Manually adjusts capacity based on demand.
• C. Automatically adjusts capacity based on demand; reduces idle resources and pay-per-use costs.
• D. Schedules resource allocation only for weekends.

Answer: (C)